After months of testing, the world's largest software maker plans to launch Microsoft Office Live in the U.S. on November 15, the same day it will roll out a test, or beta, version in France, Germany, Japan and the United Kingdom.

In a change from the test product it released in February, Office Live will also include a feature to allow small business owners to buy advertisements, tied to certain keywords, to appear alongside Microsoft's Live Search results.

Microsoft, already dominant on computer desktops with its Windows operating system and Office software suite, has been beefing up its Internet-based services to better compete with rivals such as Google Inc.

The company will offer a free, ad-supported version of Office Live that includes Web hosting, 25 company-branded e-mail accounts a shared calendar and access to Microsoft's advertising platform.

There will two subscription-based versions at $19.95 a month and $39.95 a month. Both versions come with more storage and more e-mail accounts than in the basic offering.

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